Uniview 4MP Hybrid XVR AI Recorder with Smart Motion Detection, H.265 Compression & Multi-Format Camera Support (UV-XVR301-04Q3)
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Uniview 4MP Hybrid XVR AI Recorder with Smart Motion Detection, H.265 Compression & Multi-Format Camera Support (UV-XVR301-04Q3)
The UV-XVR301-04Q3 is a compact 4-channel hybrid video recorder designed for small surveillance systems. It supports multiple camera formats including TVI, AHD, CVI, CVBS, and IP cameras, making it ideal for upgrading existing analog CCTV setups or building new hybrid systems. With H.265 video compression, it reduces storage consumption while maintaining clear recording quality. The recorder provides real-time viewing, playback, and remote access via mobile applications. It also includes intelligent motion detection (UMD) for improved event accuracy, making it suitable for homes, small shops, offices, and retail security applications.
Key Features
- 4-channel hybrid XVR recorder
- Supports TVI / AHD / CVI / CVBS / IP cameras
- H.265 / H.264 video compression
- Supports up to 8MP Lite recording (camera dependent)
- Ultra Motion Detection (UMD) smart event filtering
- Motion detection and smart playback search
- HDMI & VGA output up to 4K resolution
- Remote live view and playback via mobile app
- 1 SATA interface (supports up to 16TB HDD)
- Audio over coax support (TVI cameras only)
- ONVIF & RTSP compatible
- Compact 1U design for easy installation
- Low power consumption and stable operation
Ideal Applications
Perfect for industrial zones, parking lots, retail stores, warehouses, and public areas, it's combines intelligent detection, full-color clarity, and active deterrence for complete, always-on protection.
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